High-Grade Pure Esophageal Neuroendocrine Carcinoma Arising From Barrett's Mucosa: A Rare Phenomenon.

Esophageal neuroendocrine carcinoma (E-NEC) is a very rare neuroendocrine tumor. There are only a few case reports where pure esophageal NEC is found to be arising from Barett's mucosa. Here we present a case of high-grade pure E-NEC arising from Barrett's esophagus, which was metastasized to the liver at the time of diagnosis.